<template>
  <div>
    <Row>
      <Col span="11">
        <div id="zhexian" :style="{width: '300px', height: '300px'}"></div>
      </Col>
      <Col span="11">
        <div id="xy" :style="{width: '300px', height: '300px'}"></div>
      </Col>
    </Row>
    <Row>
      <Col span="21">
        <div id="k" :style="{width: '800px', height: '400px'}"></div>
      </Col>
    </Row>
    <!-- <Row>
      <Col span="11" offset="2">
            <div id="circle2" :style="{width: '600px', height: '400px'}"></div>
        </Col>
    </Row>-->
  </div>
</template>

<script>
export default {
  mounted() {
    this.drawLine();
  },
  data() {
    return {};
  },
  methods: {
    drawLine() {
      let zhexian = this.$echarts.init(document.getElementById("zhexian"));

      zhexian.setOption({
        title: { text: "日期" },
        xAxis: {
          type: "category",
          data: ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
        },
        yAxis: {
          type: "value",
        },
        series: [
          {
            data: [820, 932, 901, 934, 1290, 1330, 1320],
            type: "line",
          },
        ],
      });

      let xy = this.$echarts.init(document.getElementById("xy"));
      var data = [];

      for (var i = 0; i <= 360; i++) {
        var t = (i / 180) * Math.PI;
        var r = Math.sin(2 * t) * Math.cos(2 * t);
        data.push([r, i]);
      }
      xy.setOption({
        title: {
          text: "极坐标双数值轴",
        },
        legend: {
          data: ["line"],
        },
        polar: {
          center: ["50%", "54%"],
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
          },
        },
        angleAxis: {
          type: "value",
          startAngle: 0,
        },
        radiusAxis: {
          min: 0,
        },
        series: [
          {
            coordinateSystem: "polar",
            name: "line",
            type: "line",
            showSymbol: false,
            data: data,
          },
        ],
        animationDuration: 2000,
      });
      let k = this.$echarts.init(document.getElementById("k"));
      var upColor = "#ec0000";
      var upBorderColor = "#8A0000";
      var downColor = "#00da3c";
      var downBorderColor = "#008F28";

      // 数据意义：开盘(open)，收盘(close)，最低(lowest)，最高(highest)
      var data0 = splitData([
        ["2013/1/24", 2320.26, 2320.26, 2287.3, 2362.94],
        ["2013/1/25", 2300, 2291.3, 2288.26, 2308.38],
        ["2013/1/28", 2295.35, 2346.5, 2295.35, 2346.92],
        ["2013/1/29", 2347.22, 2358.98, 2337.35, 2363.8],
        ["2013/1/30", 2360.75, 2382.48, 2347.89, 2383.76],
        ["2013/1/31", 2383.43, 2385.42, 2371.23, 2391.82],
        ["2013/2/1", 2377.41, 2419.02, 2369.57, 2421.15],
        ["2013/2/4", 2425.92, 2428.15, 2417.58, 2440.38],
        ["2013/2/5", 2411, 2433.13, 2403.3, 2437.42],
        ["2013/2/6", 2432.68, 2434.48, 2427.7, 2441.73],
        ["2013/2/7", 2430.69, 2418.53, 2394.22, 2433.89],
        ["2013/2/8", 2416.62, 2432.4, 2414.4, 2443.03],
        ["2013/2/18", 2441.91, 2421.56, 2415.43, 2444.8],
        ["2013/2/19", 2420.26, 2382.91, 2373.53, 2427.07],
        ["2013/2/20", 2383.49, 2397.18, 2370.61, 2397.94],
        ["2013/2/21", 2378.82, 2325.95, 2309.17, 2378.82],
        ["2013/2/22", 2322.94, 2314.16, 2308.76, 2330.88],
        ["2013/2/25", 2320.62, 2325.82, 2315.01, 2338.78],
        ["2013/2/26", 2313.74, 2293.34, 2289.89, 2340.71],
        ["2013/2/27", 2297.77, 2313.22, 2292.03, 2324.63],
        ["2013/2/28", 2322.32, 2365.59, 2308.92, 2366.16],
        ["2013/3/1", 2364.54, 2359.51, 2330.86, 2369.65],
        ["2013/3/4", 2332.08, 2273.4, 2259.25, 2333.54],
        ["2013/3/5", 2274.81, 2326.31, 2270.1, 2328.14],
        ["2013/3/6", 2333.61, 2347.18, 2321.6, 2351.44],
        ["2013/3/7", 2340.44, 2324.29, 2304.27, 2352.02],
        ["2013/3/8", 2326.42, 2318.61, 2314.59, 2333.67],
        ["2013/3/11", 2314.68, 2310.59, 2296.58, 2320.96],
        ["2013/3/12", 2309.16, 2286.6, 2264.83, 2333.29],
        ["2013/3/13", 2282.17, 2263.97, 2253.25, 2286.33],
        ["2013/3/14", 2255.77, 2270.28, 2253.31, 2276.22],
        ["2013/3/15", 2269.31, 2278.4, 2250, 2312.08],
        ["2013/3/18", 2267.29, 2240.02, 2239.21, 2276.05],
        ["2013/3/19", 2244.26, 2257.43, 2232.02, 2261.31],
        ["2013/3/20", 2257.74, 2317.37, 2257.42, 2317.86],
        ["2013/3/21", 2318.21, 2324.24, 2311.6, 2330.81],
        ["2013/3/22", 2321.4, 2328.28, 2314.97, 2332],
        ["2013/3/25", 2334.74, 2326.72, 2319.91, 2344.89],
        ["2013/3/26", 2318.58, 2297.67, 2281.12, 2319.99],
        ["2013/3/27", 2299.38, 2301.26, 2289, 2323.48],
        ["2013/3/28", 2273.55, 2236.3, 2232.91, 2273.55],
        ["2013/3/29", 2238.49, 2236.62, 2228.81, 2246.87],
        ["2013/4/1", 2229.46, 2234.4, 2227.31, 2243.95],
        ["2013/4/2", 2234.9, 2227.74, 2220.44, 2253.42],
        ["2013/4/3", 2232.69, 2225.29, 2217.25, 2241.34],
        ["2013/4/8", 2196.24, 2211.59, 2180.67, 2212.59],
        ["2013/4/9", 2215.47, 2225.77, 2215.47, 2234.73],
        ["2013/4/10", 2224.93, 2226.13, 2212.56, 2233.04],
        ["2013/4/11", 2236.98, 2219.55, 2217.26, 2242.48],
        ["2013/4/12", 2218.09, 2206.78, 2204.44, 2226.26],
        ["2013/4/15", 2199.91, 2181.94, 2177.39, 2204.99],
        ["2013/4/16", 2169.63, 2194.85, 2165.78, 2196.43],
        ["2013/4/17", 2195.03, 2193.8, 2178.47, 2197.51],
        ["2013/4/18", 2181.82, 2197.6, 2175.44, 2206.03],
        ["2013/4/19", 2201.12, 2244.64, 2200.58, 2250.11],
        ["2013/4/22", 2236.4, 2242.17, 2232.26, 2245.12],
        ["2013/4/23", 2242.62, 2184.54, 2182.81, 2242.62],
        ["2013/4/24", 2187.35, 2218.32, 2184.11, 2226.12],
        ["2013/4/25", 2213.19, 2199.31, 2191.85, 2224.63],
        ["2013/4/26", 2203.89, 2177.91, 2173.86, 2210.58],
        ["2013/5/2", 2170.78, 2174.12, 2161.14, 2179.65],
        ["2013/5/3", 2179.05, 2205.5, 2179.05, 2222.81],
        ["2013/5/6", 2212.5, 2231.17, 2212.5, 2236.07],
        ["2013/5/7", 2227.86, 2235.57, 2219.44, 2240.26],
        ["2013/5/8", 2242.39, 2246.3, 2235.42, 2255.21],
        ["2013/5/9", 2246.96, 2232.97, 2221.38, 2247.86],
        ["2013/5/10", 2228.82, 2246.83, 2225.81, 2247.67],
        ["2013/5/13", 2247.68, 2241.92, 2231.36, 2250.85],
        ["2013/5/14", 2238.9, 2217.01, 2205.87, 2239.93],
        ["2013/5/15", 2217.09, 2224.8, 2213.58, 2225.19],
        ["2013/5/16", 2221.34, 2251.81, 2210.77, 2252.87],
        ["2013/5/17", 2249.81, 2282.87, 2248.41, 2288.09],
        ["2013/5/20", 2286.33, 2299.99, 2281.9, 2309.39],
        ["2013/5/21", 2297.11, 2305.11, 2290.12, 2305.3],
        ["2013/5/22", 2303.75, 2302.4, 2292.43, 2314.18],
        ["2013/5/23", 2293.81, 2275.67, 2274.1, 2304.95],
        ["2013/5/24", 2281.45, 2288.53, 2270.25, 2292.59],
        ["2013/5/27", 2286.66, 2293.08, 2283.94, 2301.7],
        ["2013/5/28", 2293.4, 2321.32, 2281.47, 2322.1],
        ["2013/5/29", 2323.54, 2324.02, 2321.17, 2334.33],
        ["2013/5/30", 2316.25, 2317.75, 2310.49, 2325.72],
        ["2013/5/31", 2320.74, 2300.59, 2299.37, 2325.53],
        ["2013/6/3", 2300.21, 2299.25, 2294.11, 2313.43],
        ["2013/6/4", 2297.1, 2272.42, 2264.76, 2297.1],
        ["2013/6/5", 2270.71, 2270.93, 2260.87, 2276.86],
        ["2013/6/6", 2264.43, 2242.11, 2240.07, 2266.69],
        ["2013/6/7", 2242.26, 2210.9, 2205.07, 2250.63],
        ["2013/6/13", 2190.1, 2148.35, 2126.22, 2190.1],
      ]);

      function splitData(rawData) {
        var categoryData = [];
        var values = [];
        for (var i = 0; i < rawData.length; i++) {
          categoryData.push(rawData[i].splice(0, 1)[0]);
          values.push(rawData[i]);
        }
        return {
          categoryData: categoryData,
          values: values,
        };
      }

      function calculateMA(dayCount) {
        var result = [];
        for (var i = 0, len = data0.values.length; i < len; i++) {
          if (i < dayCount) {
            result.push("-");
            continue;
          }
          var sum = 0;
          for (var j = 0; j < dayCount; j++) {
            sum += data0.values[i - j][1];
          }
          result.push(sum / dayCount);
        }
        return result;
      }

      k.setOption({
        title: {
          text: "上证指数",
          left: 0,
        },
        tooltip: {
          trigger: "axis",
          axisPointer: {
            type: "cross",
          },
        },
        legend: {
          data: ["日K", "MA5", "MA10", "MA20", "MA30"],
        },
        grid: {
          left: "10%",
          right: "10%",
          bottom: "15%",
        },
        xAxis: {
          type: "category",
          data: data0.categoryData,
          scale: true,
          boundaryGap: false,
          axisLine: { onZero: false },
          splitLine: { show: false },
          splitNumber: 20,
          min: "dataMin",
          max: "dataMax",
        },
        yAxis: {
          scale: true,
          splitArea: {
            show: true,
          },
        },
        dataZoom: [
          {
            type: "inside",
            start: 50,
            end: 100,
          },
          {
            show: true,
            type: "slider",
            top: "90%",
            start: 50,
            end: 100,
          },
        ],
        series: [
          {
            name: "日K",
            type: "candlestick",
            data: data0.values,
            itemStyle: {
              color: upColor,
              color0: downColor,
              borderColor: upBorderColor,
              borderColor0: downBorderColor,
            },
            markPoint: {
              label: {
                normal: {
                  formatter: function (param) {
                    return param != null ? Math.round(param.value) : "";
                  },
                },
              },
              data: [
                {
                  name: "XX标点",
                  coord: ["2013/5/31", 2300],
                  value: 2300,
                  itemStyle: {
                    color: "rgb(41,60,85)",
                  },
                },
                {
                  name: "highest value",
                  type: "max",
                  valueDim: "highest",
                },
                {
                  name: "lowest value",
                  type: "min",
                  valueDim: "lowest",
                },
                {
                  name: "average value on close",
                  type: "average",
                  valueDim: "close",
                },
              ],
              tooltip: {
                formatter: function (param) {
                  return param.name + "<br>" + (param.data.coord || "");
                },
              },
            },
            markLine: {
              symbol: ["none", "none"],
              data: [
                [
                  {
                    name: "from lowest to highest",
                    type: "min",
                    valueDim: "lowest",
                    symbol: "circle",
                    symbolSize: 10,
                    label: {
                      show: false,
                    },
                    emphasis: {
                      label: {
                        show: false,
                      },
                    },
                  },
                  {
                    type: "max",
                    valueDim: "highest",
                    symbol: "circle",
                    symbolSize: 10,
                    label: {
                      show: false,
                    },
                    emphasis: {
                      label: {
                        show: false,
                      },
                    },
                  },
                ],
                {
                  name: "min line on close",
                  type: "min",
                  valueDim: "close",
                },
                {
                  name: "max line on close",
                  type: "max",
                  valueDim: "close",
                },
              ],
            },
          },
          {
            name: "MA5",
            type: "line",
            data: calculateMA(5),
            smooth: true,
            lineStyle: {
              opacity: 0.5,
            },
          },
          {
            name: "MA10",
            type: "line",
            data: calculateMA(10),
            smooth: true,
            lineStyle: {
              opacity: 0.5,
            },
          },
          {
            name: "MA20",
            type: "line",
            data: calculateMA(20),
            smooth: true,
            lineStyle: {
              opacity: 0.5,
            },
          },
          {
            name: "MA30",
            type: "line",
            data: calculateMA(30),
            smooth: true,
            lineStyle: {
              opacity: 0.5,
            },
          },
        ],
      });
    },
  },
};
</script>

<style>
</style>